Home / 664,623.20-996,934.80-613,301.60

Finding the Fourth Proportional to 664,623.20, 996,934.80 and 613,301.60

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Solution

The fourth proportional to 664,623.20, 996,934.80 and 613,301.60 is: 919,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,623.20 : 996,934.80 = 613,301.60 : x
  2. Step 2: Convert to fraction form
    664,623.20/996,934.80 = 613,301.60/x
  3. Step 3: Cross multiply
    664,623.20x = 996,934.80 × 613,301.60
  4. Step 4: Simplify right side
    664,623.20x = 611,421,707,935.68
  5. Step 5: Solve for x
    x = 611,421,707,935.68/664,623.20
  6. Step 6: Final answer
    x = 919,952.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.